Privacy Policy
Last Updated: February 12, 2026
MinderF (hereinafter referred to as the "App") values your privacy and is committed to protecting your personal information. This Privacy Policy explains how we collect, use, and protect your information.
1. Information Collection and Usage
The App does not require user registration and does not store sensitive personal information such as names, phone numbers, or email addresses on our servers.
A. Local Storage
- All primary data, including user journal entries (text) and emotion analysis results, are stored locally on your device only.
- Deleting the App will also delete all data stored within the device.
B. Automatically Collected Information (Firebase Analytics)
To improve app stability and service quality, we use Google Firebase Analytics to collect the following non-personally identifiable information:
- App launch counts, session duration, screen navigation paths
- Device model, OS version, region (country) information
- Error logs (Crashlytics)
2. Third-Party Data Sharing
We do not share your personal information with third parties without your consent. However, the following external services are necessary to provide the App's features:
A. Google Gemini API (Vertex AI)
- Purpose: To conduct emotion analysis on user-written text.
- Shared Data: Journal text content entered by the user.
- Processing: Text is transmitted in encrypted form and is discarded immediately after returning the analysis result. Your data is configured NOT to be used for training AI models.
B. Google Firebase
- Purpose: App usage analysis and error tracking.
- Shared Data: Anonymized device identifiers and usage logs.
3. Data Retention
- Local Data: Retained on your device until you delete the App.
- Analytics Data (Firebase): Follows Google Firebase's data retention policy (default is 14 months or as configured).
4. User Rights
You can access, modify, or delete your data at any time.
- You can directly modify or delete journal entries using the App's features.
- Uninstalling the App will permanently destroy all local data.
5. Contact Us
If you have any questions regarding this Privacy Policy, please contact us at:
- Email: contact.minderf@gmail.com